0
|
1
|
|
2 /*
|
|
3 * Copyright (C) Igor Sysoev
|
|
4 */
|
|
5
|
|
6
|
|
7 #include <ngx_config.h>
|
|
8 #include <ngx_core.h>
|
|
9
|
|
10
|
|
11 static char *ngx_set_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
|
|
12
|
|
13
|
|
14 static ngx_command_t ngx_errlog_commands[] = {
|
|
15
|
|
16 {ngx_string("error_log"),
|
|
17 NGX_MAIN_CONF|NGX_CONF_1MORE,
|
|
18 ngx_set_error_log,
|
|
19 0,
|
|
20 0,
|
|
21 NULL},
|
|
22
|
|
23 ngx_null_command
|
|
24 };
|
|
25
|
|
26
|
|
27 static ngx_core_module_t ngx_errlog_module_ctx = {
|
|
28 ngx_string("errlog"),
|
126
|
29 NULL,
|
0
|
30 NULL
|
|
31 };
|
|
32
|
|
33
|
|
34 ngx_module_t ngx_errlog_module = {
|
58
|
35 NGX_MODULE_V1,
|
0
|
36 &ngx_errlog_module_ctx, /* module context */
|
|
37 ngx_errlog_commands, /* module directives */
|
|
38 NGX_CORE_MODULE, /* module type */
|
90
|
39 NULL, /* init master */
|
0
|
40 NULL, /* init module */
|
90
|
41 NULL, /* init process */
|
|
42 NULL, /* init thread */
|
|
43 NULL, /* exit thread */
|
|
44 NULL, /* exit process */
|
|
45 NULL, /* exit master */
|
|
46 NGX_MODULE_V1_PADDING
|
0
|
47 };
|
|
48
|
|
49
|
|
50 static ngx_log_t ngx_log;
|
522
|
51 static ngx_open_file_t ngx_log_file;
|
|
52 ngx_uint_t ngx_use_stderr = 1;
|
0
|
53
|
|
54
|
522
|
55 static ngx_str_t err_levels[] = {
|
|
56 ngx_string("stderr"),
|
|
57 ngx_string("emerg"),
|
|
58 ngx_string("alert"),
|
|
59 ngx_string("crit"),
|
|
60 ngx_string("error"),
|
|
61 ngx_string("warn"),
|
|
62 ngx_string("notice"),
|
|
63 ngx_string("info"),
|
|
64 ngx_string("debug")
|
0
|
65 };
|
|
66
|
|
67 static const char *debug_levels[] = {
|
|
68 "debug_core", "debug_alloc", "debug_mutex", "debug_event",
|
290
|
69 "debug_http", "debug_mail", "debug_mysql"
|
0
|
70 };
|
|
71
|
|
72
|
4
|
73 #if (NGX_HAVE_VARIADIC_MACROS)
|
52
|
74
|
|
75 void
|
|
76 ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
|
|
77 const char *fmt, ...)
|
|
78
|
0
|
79 #else
|
52
|
80
|
|
81 void
|
|
82 ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
|
|
83 const char *fmt, va_list args)
|
|
84
|
0
|
85 #endif
|
|
86 {
|
4
|
87 #if (NGX_HAVE_VARIADIC_MACROS)
|
10
|
88 va_list args;
|
0
|
89 #endif
|
522
|
90 u_char *p, *last, *msg;
|
|
91 u_char errstr[NGX_MAX_ERROR_STR];
|
0
|
92
|
|
93 if (log->file->fd == NGX_INVALID_FILE) {
|
|
94 return;
|
|
95 }
|
|
96
|
10
|
97 last = errstr + NGX_MAX_ERROR_STR;
|
|
98
|
0
|
99 ngx_memcpy(errstr, ngx_cached_err_log_time.data,
|
|
100 ngx_cached_err_log_time.len);
|
|
101
|
10
|
102 p = errstr + ngx_cached_err_log_time.len;
|
0
|
103
|
522
|
104 p = ngx_snprintf(p, last - p, " [%V] ", &err_levels[level]);
|
0
|
105
|
|
106 /* pid#tid */
|
270
|
107 p = ngx_snprintf(p, last - p, "%P#" NGX_TID_T_FMT ": ",
|
|
108 ngx_log_pid, ngx_log_tid);
|
0
|
109
|
32
|
110 if (log->connection) {
|
270
|
111 p = ngx_snprintf(p, last - p, "*%uA ", log->connection);
|
32
|
112 }
|
|
113
|
522
|
114 msg = p;
|
|
115
|
4
|
116 #if (NGX_HAVE_VARIADIC_MACROS)
|
0
|
117
|
|
118 va_start(args, fmt);
|
10
|
119 p = ngx_vsnprintf(p, last - p, fmt, args);
|
0
|
120 va_end(args);
|
|
121
|
|
122 #else
|
|
123
|
10
|
124 p = ngx_vsnprintf(p, last - p, fmt, args);
|
0
|
125
|
|
126 #endif
|
|
127
|
|
128 if (err) {
|
|
129
|
10
|
130 if (p > last - 50) {
|
0
|
131
|
|
132 /* leave a space for an error code */
|
|
133
|
10
|
134 p = last - 50;
|
|
135 *p++ = '.';
|
|
136 *p++ = '.';
|
|
137 *p++ = '.';
|
0
|
138 }
|
|
139
|
10
|
140 #if (NGX_WIN32)
|
459
|
141 p = ngx_snprintf(p, last - p, ((unsigned) err < 0x80000000)
|
|
142 ? " (%d: " : " (%Xd: ", err);
|
0
|
143 #else
|
10
|
144 p = ngx_snprintf(p, last - p, " (%d: ", err);
|
0
|
145 #endif
|
|
146
|
10
|
147 p = ngx_strerror_r(err, p, last - p);
|
0
|
148
|
10
|
149 if (p < last) {
|
|
150 *p++ = ')';
|
0
|
151 }
|
|
152 }
|
|
153
|
|
154 if (level != NGX_LOG_DEBUG && log->handler) {
|
32
|
155 p = log->handler(log, p, last - p);
|
0
|
156 }
|
|
157
|
120
|
158 if (p > last - NGX_LINEFEED_SIZE) {
|
|
159 p = last - NGX_LINEFEED_SIZE;
|
10
|
160 }
|
|
161
|
120
|
162 ngx_linefeed(p);
|
16
|
163
|
447
|
164 (void) ngx_write_fd(log->file->fd, errstr, p - errstr);
|
522
|
165
|
|
166 if (!ngx_use_stderr
|
|
167 || level > NGX_LOG_WARN
|
|
168 || log->file->fd == ngx_stderr)
|
|
169 {
|
|
170 return;
|
|
171 }
|
|
172
|
|
173 msg -= (err_levels[level].len + 4);
|
|
174
|
|
175 (void) ngx_sprintf(msg, "[%V]: ", &err_levels[level]);
|
|
176
|
|
177 (void) ngx_write_fd(ngx_stderr, msg, p - msg);
|
0
|
178 }
|
|
179
|
|
180
|
4
|
181 #if !(NGX_HAVE_VARIADIC_MACROS)
|
0
|
182
|
52
|
183 void ngx_cdecl
|
|
184 ngx_log_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
|
|
185 const char *fmt, ...)
|
0
|
186 {
|
10
|
187 va_list args;
|
0
|
188
|
|
189 if (log->log_level >= level) {
|
|
190 va_start(args, fmt);
|
|
191 ngx_log_error_core(level, log, err, fmt, args);
|
|
192 va_end(args);
|
|
193 }
|
|
194 }
|
|
195
|
|
196
|
52
|
197 void ngx_cdecl
|
|
198 ngx_log_debug_core(ngx_log_t *log, ngx_err_t err, const char *fmt, ...)
|
0
|
199 {
|
10
|
200 va_list args;
|
0
|
201
|
|
202 va_start(args, fmt);
|
|
203 ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, args);
|
|
204 va_end(args);
|
|
205 }
|
|
206
|
|
207 #endif
|
|
208
|
|
209
|
522
|
210 void ngx_cdecl
|
|
211 ngx_log_abort(ngx_err_t err, const char *fmt, ...)
|
520
|
212 {
|
522
|
213 u_char *p;
|
|
214 va_list args;
|
|
215 u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
216
|
|
217 va_start(args, fmt);
|
|
218 p = ngx_vsnprintf(errstr, sizeof(errstr) - 1, fmt, args);
|
|
219 va_end(args);
|
|
220
|
|
221 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, err,
|
|
222 "%*s", p - errstr, errstr);
|
520
|
223 }
|
|
224
|
|
225
|
|
226 void ngx_cdecl
|
522
|
227 ngx_log_stderr(ngx_err_t err, const char *fmt, ...)
|
258
|
228 {
|
522
|
229 u_char *p, *last;
|
520
|
230 va_list args;
|
|
231 u_char errstr[NGX_MAX_ERROR_STR];
|
|
232
|
|
233 va_start(args, fmt);
|
|
234 p = ngx_vsnprintf(errstr, NGX_MAX_ERROR_STR, fmt, args);
|
|
235 va_end(args);
|
|
236
|
|
237 if (p > errstr + NGX_MAX_ERROR_STR - NGX_LINEFEED_SIZE) {
|
|
238 p = errstr + NGX_MAX_ERROR_STR - NGX_LINEFEED_SIZE;
|
|
239 }
|
|
240
|
522
|
241 if (err) {
|
|
242
|
|
243 last = errstr + NGX_MAX_ERROR_STR;
|
|
244
|
|
245 if (p > last - 50) {
|
|
246
|
|
247 /* leave a space for an error code */
|
|
248
|
|
249 p = last - 50;
|
|
250 *p++ = '.';
|
|
251 *p++ = '.';
|
|
252 *p++ = '.';
|
|
253 }
|
|
254
|
|
255 #if (NGX_WIN32)
|
|
256 p = ngx_snprintf(p, last - p, ((unsigned) err < 0x80000000)
|
|
257 ? " (%d: " : " (%Xd: ", err);
|
|
258 #else
|
|
259 p = ngx_snprintf(p, last - p, " (%d: ", err);
|
|
260 #endif
|
|
261
|
|
262 p = ngx_strerror_r(err, p, last - p);
|
|
263
|
|
264 if (p < last) {
|
|
265 *p++ = ')';
|
|
266 }
|
|
267 }
|
|
268
|
520
|
269 ngx_linefeed(p);
|
|
270
|
522
|
271 (void) ngx_write_fd(ngx_stderr, errstr, p - errstr);
|
258
|
272 }
|
|
273
|
|
274
|
52
|
275 ngx_log_t *
|
522
|
276 ngx_log_init(u_char *prefix)
|
0
|
277 {
|
522
|
278 u_char *p, *name;
|
|
279 size_t nlen, plen;
|
|
280
|
|
281 ngx_log.file = &ngx_log_file;
|
10
|
282 ngx_log.log_level = NGX_LOG_NOTICE;
|
0
|
283
|
522
|
284 name = (u_char *) NGX_ERROR_LOG_PATH;
|
|
285
|
|
286 /*
|
|
287 * we use ngx_strlen() here since BCC warns about
|
|
288 * condition is always false and unreachable code
|
|
289 */
|
|
290
|
|
291 nlen = ngx_strlen(name);
|
|
292
|
|
293 if (nlen == 0) {
|
|
294 ngx_log_file.fd = ngx_stderr;
|
|
295 return &ngx_log;
|
|
296 }
|
|
297
|
|
298 p = NULL;
|
|
299
|
10
|
300 #if (NGX_WIN32)
|
522
|
301 if (name[1] != ':') {
|
|
302 #else
|
|
303 if (name[0] != '/') {
|
|
304 #endif
|
|
305 plen = 0;
|
0
|
306
|
522
|
307 if (prefix) {
|
|
308 plen = ngx_strlen(prefix);
|
|
309
|
|
310 #ifdef NGX_PREFIX
|
|
311 } else {
|
|
312 prefix = (u_char *) NGX_PREFIX;
|
|
313 plen = ngx_strlen(prefix);
|
|
314 #endif
|
|
315 }
|
188
|
316
|
522
|
317 if (plen) {
|
|
318 name = malloc(plen + nlen + 2);
|
|
319 if (name == NULL) {
|
|
320 return NULL;
|
|
321 }
|
|
322
|
|
323 p = ngx_cpymem(name, prefix, plen);
|
0
|
324
|
522
|
325 if (!ngx_path_separator(*(p - 1))) {
|
|
326 *p++ = '/';
|
|
327 }
|
|
328
|
|
329 ngx_cpystrn(p, (u_char *) NGX_ERROR_LOG_PATH, nlen + 1);
|
|
330
|
|
331 p = name;
|
|
332 }
|
10
|
333 }
|
0
|
334
|
522
|
335 ngx_log_file.fd = ngx_open_file(name, NGX_FILE_APPEND,
|
|
336 NGX_FILE_CREATE_OR_OPEN,
|
|
337 NGX_FILE_DEFAULT_ACCESS);
|
0
|
338
|
522
|
339 if (ngx_log_file.fd == NGX_INVALID_FILE) {
|
|
340 ngx_log_stderr(ngx_errno,
|
|
341 "[alert]: could not open error log file: "
|
|
342 ngx_open_file_n " \"%s\" failed", name);
|
|
343 #if (NGX_WIN32)
|
|
344 ngx_event_log(ngx_errno,
|
|
345 "could not open error log file: "
|
|
346 ngx_open_file_n " \"%s\" failed", name);
|
|
347 #endif
|
0
|
348
|
522
|
349 ngx_log_file.fd = ngx_stderr;
|
|
350 }
|
|
351
|
|
352 if (p) {
|
|
353 ngx_free(p);
|
|
354 }
|
0
|
355
|
|
356 return &ngx_log;
|
|
357 }
|
|
358
|
|
359
|
52
|
360 ngx_log_t *
|
522
|
361 ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_str_t *name)
|
0
|
362 {
|
|
363 ngx_log_t *log;
|
|
364
|
50
|
365 log = ngx_pcalloc(cycle->pool, sizeof(ngx_log_t));
|
|
366 if (log == NULL) {
|
0
|
367 return NULL;
|
|
368 }
|
|
369
|
50
|
370 log->file = ngx_conf_open_file(cycle, name);
|
|
371 if (log->file == NULL) {
|
0
|
372 return NULL;
|
|
373 }
|
|
374
|
|
375 return log;
|
|
376 }
|
|
377
|
|
378
|
52
|
379 char *
|
|
380 ngx_set_error_log_levels(ngx_conf_t *cf, ngx_log_t *log)
|
0
|
381 {
|
|
382 ngx_uint_t i, n, d;
|
|
383 ngx_str_t *value;
|
|
384
|
|
385 value = cf->args->elts;
|
|
386
|
|
387 for (i = 2; i < cf->args->nelts; i++) {
|
|
388
|
|
389 for (n = 1; n <= NGX_LOG_DEBUG; n++) {
|
522
|
390 if (ngx_strcmp(value[i].data, err_levels[n].data) == 0) {
|
0
|
391
|
|
392 if (log->log_level != 0) {
|
|
393 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
522
|
394 "duplicate log level \"%V\"",
|
|
395 &value[i]);
|
0
|
396 return NGX_CONF_ERROR;
|
|
397 }
|
|
398
|
|
399 log->log_level = n;
|
|
400 continue;
|
|
401 }
|
|
402 }
|
|
403
|
|
404 for (n = 0, d = NGX_LOG_DEBUG_FIRST; d <= NGX_LOG_DEBUG_LAST; d <<= 1) {
|
|
405 if (ngx_strcmp(value[i].data, debug_levels[n++]) == 0) {
|
|
406 if (log->log_level & ~NGX_LOG_DEBUG_ALL) {
|
|
407 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
522
|
408 "invalid log level \"%V\"",
|
|
409 &value[i]);
|
0
|
410 return NGX_CONF_ERROR;
|
|
411 }
|
|
412
|
|
413 log->log_level |= d;
|
|
414 }
|
|
415 }
|
|
416
|
|
417
|
|
418 if (log->log_level == 0) {
|
|
419 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
522
|
420 "invalid log level \"%V\"", &value[i]);
|
0
|
421 return NGX_CONF_ERROR;
|
|
422 }
|
|
423 }
|
|
424
|
473
|
425 if (log->log_level == 0) {
|
|
426 log->log_level = NGX_LOG_ERR;
|
|
427
|
|
428 } else if (log->log_level == NGX_LOG_DEBUG) {
|
0
|
429 log->log_level = NGX_LOG_DEBUG_ALL;
|
|
430 }
|
|
431
|
|
432 return NGX_CONF_OK;
|
|
433 }
|
|
434
|
|
435
|
52
|
436 static char *
|
|
437 ngx_set_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
0
|
438 {
|
|
439 ngx_str_t *value;
|
|
440
|
|
441 value = cf->args->elts;
|
|
442
|
|
443 if (value[1].len == 6 && ngx_strcmp(value[1].data, "stderr") == 0) {
|
522
|
444 cf->cycle->new_log->file->fd = ngx_stderr;
|
0
|
445 cf->cycle->new_log->file->name.len = 0;
|
|
446 cf->cycle->new_log->file->name.data = NULL;
|
|
447
|
|
448 } else {
|
|
449 cf->cycle->new_log->file->name = value[1];
|
|
450
|
324
|
451 if (ngx_conf_full_name(cf->cycle, &cf->cycle->new_log->file->name, 0)
|
493
|
452 != NGX_OK)
|
0
|
453 {
|
|
454 return NGX_CONF_ERROR;
|
|
455 }
|
|
456 }
|
|
457
|
|
458 return ngx_set_error_log_levels(cf, cf->cycle->new_log);
|
|
459 }
|